Multi-phase particulates, method of making, and composition containing same

A method of preparing a multi-phase particulate the method comprising:

• (1) blending together
• (a) a dispersed phase component comprising a metal, a metal oxide, an organometallic compound, salts thereof, and/or mixtures thereof, and
• (b) an aqueous slurry of a bulk phase component comprising an inorganic material different from the dispersed phase component to form an aqueous slurry admixture, wherein the dispersed phase component (a) is present in an amount ranging from 0.5 to 60 percent by weight based on total combined weight of the dispersed phase component (a) and the bulk phase component (b);
• (2) drying the aqueous slurry admixture to form a dry admixture;
• and
• (3) dry-milling and/or compressing the dry admixture for a time and at a pressure sufficient to disperse the dispersed phase component in and bind the dispersed phase component to the bulk phase component, thereby forming a multi-phase particulate.

A coating composition comprising:

• (a) a resinous binder;
• and
• (b) a multi-phase particulate dispersed in the resinous binder,
• the mufti-phase particulate comprising a dispersed phase component dispersed in and bound to a bulk phase component,
• the dispersed phase component comprising a metal, a metal oxide, an organometallic compound, salts thereof, and/or mixtures thereof,
• the bulk phase component comprising an inorganic material different from the dispersed phase component,
• wherein the dispersed phase component is present in an amount ranging from 0.5 to 60 percent by weight based on total combined weight of the dispersed phase component and the bulk phase component.

A multilayer composite comprising:

• (a) a metallic substrate, and
• (b) at least one coating layer over at least a portion of the metallic substrate, the coating layer formed from a coating composition comprising
• (i) a resinous binder;
• and
• (ii) a multi-phase particulate dispersed in the resinous binder,
• the multi-phase particulate comprising a dispersed phase component dispersed in and bound to a bulk phase component,
• the dispersed phase component comprising a metal, a metal oxide, an organometallic compound, salts thereof, and/or mixtures thereof,
• the bulk phase component comprising an inorganic material different from the dispersed phase component,
• wherein the dispersed phase component is present in an amount ranging from 0.5 to 60 percent by weight based on total combined weight of the dispersed phase component and the bulk phase component.